U.S. Army Air Corps recruits undergoing gas mask training at a basic training base in Florida during World War II.

U.S. Army Air Corps recruits l receive gas mask familiarization at a basic training base in Saint Petersburg, Florida duringf World War 2. Trainees are seen donning gas masks in preparation. Closeup of some trainees in their masks. The group enters through a doorway labeled "Danger Gas Chamber." Next, they are see exiting the doorway, carrying their masks and exhibiting some effects from tear gas, which they have been deliberately subject to as part of their familiarization training. Closeup of several men with tearing eyes from the brief exposure. Change of scene shows a smoke screen flowing over the ground. A jeep carrying several officers emerges from the smoke. Next, a cadre of trainees emerges on foot.